Combination dyeing and squeezing device for cloth-dyeing machines



June 16, 1953 J DUNGLER 2,641,917

COMBINATION DYEING AND SQUEEZING DEVICE FOR CLOTH DYEING MACH INES FiledSept. 11, 1946 2 Sheets-Sheet 1 Fig. 2

June 16, 1953 J. DUNGLER 2,641,917

COMBINATION DYEING AND SQUEEZING DEVICE FOR CLOTH DYEING MACHINES FiledSept. 11, 1946 2 Sheets-Sheet 2 6 M f w Patented June 16, 1953 UNITEDSTAT T QFFICE JulienDungler, Basel, Switzerland Application September11, 1946, Serial No. 696,174 In France May 20, 1946 Claims.

This invention refers to dyeing and like cloth or web treating machines.

The invention has for its object to provide means affording the dyeingof fabrics at full width within an extremely small space, whereby thepiece of fabric, or even two superposed pieces or laps of fabric, maypass through the dye bath or baths in a continuous manner and in one andthe same direction, as many times as required by the nature of thedyebath or baths.

The invention further contemplates the provision of one or a pluralityof horizontal crabbing devices or padders-each comprising a pair ofrollers with substantially parallel, horizontal axes, said rollers beingpressed against one another by mechanical or hydraulic means, to therebyattain trough-shaped reservoirs above the respective horizontalgeneratrix of contact of said rollers whereby the fabric is led in aspiral path passing several times, in the same direction, through the 9horizontal crabbing device or devices, and leaves the same, after havingbeen subjected to a final squeezing action.

Preferably, the spiral path of the fabric is so arranged as to leave acentral space having a zone of greater width than that of the fabric, insuch a manner that the feed of said fabric is effected in said zonewhere there is furthermore provided a direction changing member whichenables the fabric to start on its spiral path or course.

Embodiments of the invention are given merely by way of non-limitativeexamples and are illustrated diagrammatically in vertical section in theaccompanying drawings to which reference will be made in the ensuingdescription.

In said drawings:

Fig. 1 shows a machine with a single horizontal crabbing device orpadder made in accordance with the invention;

Fig. 2 a machine with two horizontal crabbing devices;

Figs. 3 and 4 show a modified embodiment of the invention in verticalsectional elevation and a top plan view, respectively.

In the machine of Fig. 1, reference numerals l and 2 designate twohorizontal rollers with axes thereof in the same horizontal plane, whichrollers are held in contact with one another under pressure and in theplane in which their axes lie. These rollersv form between them a troughwith cylindrical side walls to serve asa dye reservoir 3. Theliquid-tightness at the end may be obtained in the manner described incopending application Serial No. 694,273 filed August 31, 1946, now U.S. Patent No. 2,603,077,

dated July 15, 1952. According to this latter application the crabbingdevice is provided at each end of the pair of rollers, with aliquid-tight cheek or flange l, mounted on the shaft of one of therollers, and of sufficient diameter and size to form a fiat end wall forthe dye reservoir thus created, said cheek being pressed by spring orother means against the respective end surfaces of the said rollers.

This horizontalcrabbing machine is combined with means whereby thefabric 5 effects a spiral path or course, which is so arranged that thefabric is conducted to pass repeatedly (twice only according to thediagrammatic showing of Fig. 1) through the dye bath or reservoir 3 and,after having passed the same the last time and after having beensubjected to a final squeezing action between the rotary rollers I and2, comes out of the machine and passes, for example, into a mechanicalfolding device I l.

The fabric 5, which is brought into a vertical plane located laterallywith respect to the-spiral course, and which is controlled byselvedgeguiding-roller devices III, is guided by external horizontalguide-roller 6 into the central space I left inside the convolutions ofthe fabric, then deviated by another horizontal guide-roller (or a bar)8 arranged at and passes over the first of the guide-rollers 9 and theneffects the course indicated by the arrows.

In the embodiment of Fig. 2, two horizontal crabbing devices |--2, |'--2forming dye troughs or reservoirs 3, 3', are combined with a device forcontinuously circulating the fabric or web 5 with three convolutions andso that it passes, at each convolution, through each of the troughs 3and 3', the outlet of the web taking place after it has passed for thethird time through the trough 3 and, the last squeezing action has beeneffected by the rollers l'--2'.

In the modified construction of Figs. 3 and 4, the bottom l2 of themachine forms, below each crabbing device and in close proximitythereto, a

trough l3 and I3 respectively, of small capacity. When thin fabrics aretreated which require to be passed several times, it is possible to useas dye troughs the two trough-reservoirs of each pair of rollers. On theother hand, when several superposed layers provide a thickness of fabricwhich is so great that there is a risk of the rollers getting out ofcontact on either side of the selvedges, it is advisable to use thetroughs l3 and 13 as dye reservoirs.

In Fig. 3 numeral [4 designates a receptacle containing the dye; l5 andI5 are the supply 3 pipes for the two crabbing devices; in case thetroughs l3 and I3 are used, the dye supplied by the pipes 15 and 15between the rollers I, 2 and l, 2' may drop for collection into the saidtroughs l3 and I3.

For pressing the rollers 2, 2' against the rollers I and I respectively,a hydraulic device is provided which comprises, on each side of themachine, a cylinder I5 and two pistons therein having rods I1 and 11respectively.

The drive of the rollers l and 2, and also of the folding device I I, iseffected by a motor [8.

It is of course understood that the invention is in no way limited tothe particular embodiments shown and that it is possible, withoutexceeding the scope of the invention, to imagine further improvements ofdetails.

Having thus described the invention, what is claimed as new and desiredto be secured by Letters Patent, is:

1. In a dyeing and like treatment machine for web material; thecombination of two pairs of substantially horizontally extendingrollers, with guide means for said material, the rollers of each pair ofrollers being in contact with each other along a generatrix of saidrollers, one roller of each pair of rollers being provided with endflange means to thereby form between each pair of rollers and saidflange means a reservoir adapted to contain a treatment liquid for saidmaterial, one pair of rollers being spaced from another pair of rollers,said two pairs of rollers being located substantially in a commonhorizontal plane, said guide means being adapted to conduct saidmaterial to and from said pairs of rollers so that said material followsa spiral course from one pair of rollers to the other pair of rollersand travels in superposed layers through said reservoirs and for finaldischarge from one of said reservoirs.

2. In a dyeing and like machine for treating web material; thecombination of two pairs of rollers having substantially horizontalaxes, the rollers of each'pair of said rollers being in contact witheach other along a common generatrix, with guide means for saidmaterial, each pair of rollers including end flange means to therebyform between the rollers in contact with each other and said flangemeans a respective reservoir adapted to contain a treatment liquid forsaid material, at least part of said guide means being accommodatedintermediate said pairs of rollers, whereby said material may beconducted to said part of said guide means and then deviated by thelatter to follow a spiral course with respect 4 to said pairs of rollersand to travel in superposed laps through said reservoirs.

3. In a dyeing and like machine according to claim 2, wherein said pairsof rollers are arranged substantially in a common substantiallyhorizontal plane.

4. In a dyeing and like machine according to claim 2, wherein areceptacle is arranged below each pair of rollers, each receptacle beingadapted to contain a further treatment liquid, said pairs of rollersbeing adapted to form squeezing rollers for said web material leavingsaid receptacles, respectively.

5. In a dyeing and like machine for treating web material; thecombination of at least one pair of substantially horizontally extendingsqueezing rollers in contact with each other along a common generatrix,with guide means for said material, said pair of rollers including endflange means to thereby form above said generatrix and between saidrollers and said flange means a reservoir, said reservoir being adaptedto contain a treatment liquid for said material, a part of said guidemeans being arranged above and laterally from said pair of rollers andbeing adapted to conduct said material from above into said reservoirand between said rollers, thence over other of said guide means belowsaid rollers, and from further of said guide means in a spiral path backinto said reservoir whereby said web material is arranged in superposedlayers therewithin, the remainder of said guide means being adapted tofinally lead said web material from below said reservoir and aftersqueezing operation between said rollers to a collecting station.

JULIEN DUNGLER.

References Cited in the flle of this patent UNITED STATES PATENTSNumber- Name Date 985,695 Palmer Feb. 28, 1911 1,555,864 McConnell Oct.6, 1925 1,626,439 Voegeli Apr. 26, 1927 1,946,627 Karrer Feb. 13, 19342,145,019 Backup Jan. 24, 1939 2,366,100 Green Dec. 26, 1944 2,505,657Wentz Apr. 25, 1950 2,511,625 Dungler June 13, 1950 FOREIGN PATENTSNumber Country Date 169,922 Germany Apr. 24, 1903 8,288 Great BritainSept. 7, 1911

